作者:Philip Hodge、Siân C. James、Nicholas C. Norman、A. Guy Orpen
DOI:10.1039/a806647g
日期:——
The preparation and crystal structures of the aryloxy bismuth halide compounds [Bi2Cl4(thf)2(µ-OC6H3Me2-2,6)2], [Bi2Cl4(thf)2(µ-OC6H2Me3-2,4,6)2], [NMe4]2[Bi2(OC6H3Me2-2,6)6(µ-Cl)2] and [PPh4]2[BiBr3(OC6H2Me3-2,4,6)2] are described. The former two compounds, which are isostructural, are neutral and comprise loosely bound polymers of more strongly bound dimers. Within the dimeric unit, the two bismuth centres are bridged by two aryloxide groups with each bismuth additionally carrying two chlorine atoms and one thf ligand. Asymmetric chlorine bridges between dimers result in the polymeric structure. The latter two structures contain aryloxy bismuth halide anions. In the structure of [Bi2(OC6H3Me2-2,6)6(µ-Cl)2]2– two chlorine atoms form bridges between Bi(OC6H3Me2-2,6)3 units whereas in [BiBr3(OC6H2Me3-2,4,6)2]2– a monomeric species is present. Also reported are the preparations of the compounds [PPh4]2[Bi2Br2(OC6H2Me3-2,4,6)4(µ-Br)2], [PPh4]2[BiBr2(OC6H3Me2-2,6)3] and SbCl2(OC6H2But3-2,4,6).
描述了芳氧化铋卤化物化合物 [Bi2Cl4(thf)2(µ-OC6H3Me2-2,6)2]、[Bi2Cl4(thf)2(µ-OC6H2Me3-2,4,6)2]、[NMe4]2[Bi2(OC6H3Me2-2,6)6(µ-Cl)2] 和 [PPh4]2[BiBr3(OC6H2Me3-2,4,6)2] 的制备及其晶体结构。前两个化合物为同构结构,中性,并由较强结合的二聚体松散结合的聚合物组成。在二聚体单元内,两个铋中心通过两个芳氧化合物桥接,每个铋还携带两个氯原子和一个thf配体。二聚体间的不对称氯桥导致聚合物结构的形成。后两种结构包含芳氧化铋卤化物阴离子。在 [Bi2(OC6H3Me2-2,6)6(µ-Cl)2]2– 的结构中,两个氯原子在 Bi(OC6H3Me2-2,6)3 单元之间形成桥接,而在 [BiBr3(OC6H2Me3-2,4,6)2]2– 中则存在单体。还报道了化合物 [PPh4]2[Bi2Br2(OC6H2Me3-2,4,6)4(µ-Br)2]、[PPh4]2[BiBr2(OC6H3Me2-2,6)3] 和 SbCl2(OC6H2But3-2,4,6) 的制备。